(40pcs) 1/2-13 X 1-1/2 Hex Bolts / Hex Head Cap Screws, Silicon Bronze, Ships FREE in USA by Aspen Fasteners by ASPEN FASTENERS Cap-Screws-and-Hex-Bolts at Verso Laquila. MPN: ASST8H50C150. Hurry! Limited time offer. Offer valid only while supplies last. Made from Alloy 651 (which contains 96% copper with silicon for added strength), these cap screws are extremely resistant to the corrosive effects of sea water, gases, andsewage. They're also nonmagnetic and good conductors of heat and electricity. All screws are fully threaded with a Class 2A thread fit and head dimensions that meet ASME B18.2.1.They have a minimum Rockwell hardness of B70 and minimum tensile strength of 70,000psi. Screw length is measured from under the head.

Product Description & Reviews

Made from Alloy 651 (which contains 96% copper with silicon for added strength), these cap screws are extremely resistant to the corrosive effects of sea water, gases, andsewage. They're also nonmagnetic and good conductors of heat and electricity. All screws are fully threaded with a Class 2A thread fit and head dimensions that meet ASME B18.2.1.They have a minimum Rockwell hardness of B70 and minimum tensile strength of 70,000psi. Screw length is measured from under the head.1/2"-13 X 1-1/2.